Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

17 questions · 17 findings · 2 reviews · Airways

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 2 · 11.8%Moderate 13 · 76.5%High 2 · 11.8%

Antibiotics vs placebo

Exacerbations · Adults (aged 40 or over) with COPD presenting with 1 or more exacerbations in the previous year. The 2 larger studies (Albert 2011; Sethi…

Antibiotics probably leads to lower number of people with one or more exacerbations WMD of compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

Annual Exacerbation Rates · Adults (aged 40 or over) with COPD presenting with 1 or more exacerbations in the previous year. The 2 larger studies (Albert 2011; Sethi…

Antibiotics probably leads to lower rate of exacerbation per patient/year WMD of compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

All‐cause mortality WMD of · Adults (aged 40 or over) with COPD presenting with 1 or more exacerbations in the previous year. The 2 larger studies (Albert 2011; Sethi…

Antibiotics showed no clear difference in all‐cause mortality WMD of compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

Serious adverse events WMD of · Adults (aged 40 or over) with COPD presenting with 1 or more exacerbations in the previous year. The 2 larger studies (Albert 2011; Sethi…

Antibiotics showed no clear difference in serious adverse events WMD of compared with placebo (moderate certainty).

1 finding from 1 review

Antibiotics vs placebo

Treatment failure within 4 weeks ‐ current drugs only ‐ inpatient · exacerbations of COPD

Antibiotics showed no clear difference in treatment failure within 4 weeks ‐ current drugs only ‐ inpatient compared with placebo (moderate certainty).

1 finding from 1 review